Process of producing manganates, permanganates, halogens, and hydroxids.



I UNITED STATES PATENT OFFICE.

FLORENTINE J. MACHALSKE, CHICAGO, ILLINOiS, ASSIGNOR 0F ONE-HALF 1'0 ROBERT F. PIERCE, OF CHICAGO, ILLINOIS.

PROCESS OF PRODUCING MANGANATES, PERMANGANATES, HALOGENS, AND

HYDBOXIDS.

Patented Apr. 26, 1910.

956,,120. Specification of Letters Patent. No Drawing. Application filed Qctobcr 19, 1908. Serial No. 458,505.

To all whom it may concern:

Be it known that I, FLORENTINE J. MACHALSKE, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain newcand useful Improvements in Processes of Producing Manganates, Perman'ganates,

rent, preferably alternating, of from 1670' amperes at 60 volts to 2500 amperes at 40 volts is sufiicient for a furnace of the usual size. 'When an alkali or other haloid compound is employed, the halo en is liberated and may be variously utilize The rocess further contemplates treatment ot the resulting alkali or other manganate with water, to produce a permanganate and hydroxid.

In employing the process to produce sodium manganate, a mixture of about two parts of sodiunrchlorid and one part of man anese dioxid is heated, prcferabl in an e ectric ;turnace, 1n the presence 0 atmospheric air, to a temperature sufiicient to cause the materials to react with the production of one part of disodiuni manga nate and two parts of free chlorin. The chlorin may be conducted away from the furnace and used for the manufacture of 'loleaching powder, liquefied, or otherwise utilized, as for convertin the manganatc into permanganate according to the equation:

2Na2MnO4+2Cl=QNaCl-l-NaQMnOS.

The sodium manganate is then treated with water, three parts of the manganate and two parts of water giving one part of manganese dioxid, one part of sodmm permanganate and four parts of sodium hydroxid.

a The manganese dioxid maybe returned to the electric furnace as part of a new charge. The sodium permanganate may be converted into potassium permanganate by causing it to react with potassium ehlorid.

It will be seen that my processafiords a cheap and convenient method of converting sodium chlorid into sodium permanganate, sodium hydroxid and chlorin.

I claim:

1. The process of producing manganates, which consists of heating a mixture of a haloid of the desired base of the manganate and a manganous compound, in the presence of an oxidizing agent, to a temperature sufficient to'cause the materials to react upon each. other with the production of a manganate, as set forth.

2. The process of roducing manganates and a halogen, whic consists of'heating a mixtureof a chlorid of the desired base of 'themanganate and a manganous comthe materials to react upon each other with the production of a mangauate and a halogen, as set forth.

3. The process of producing alkali manganates, 'whichconsists of heating a mixture of an alkali chlorid and a manganous compound, in the presence of an oxidizing agent, to a temperature sufficient to cause 7 the I 4. The process of producing alkali manganates, which consistsof heating a mixture of an alkali chlorid and manganese dioxid, in the presence of an oxidizing agent, to a temperature sufficient to cause the materials to react upon each other with the production of a manganate, as set forth.

5. The process of producing alkali manganates, which consists of heating. a mix- .ture of an alkali chlorid and manganese peratulre suiiicient to cause the materials to react upon each other with the production of a manganate, as set forthr 6. The process of producin alkali maneating a mixture of, an alkali haloid and a manganous compound, in the presence of an oxidizing agent, to a temperature suflipound, in the presence of an oxidizing agent, to a temperature sufficient to cause the materials to react upon each other with production-of a. manganate, as set forth.

dioxid, in the presence of oxygen, to a temganates and a halogen, whic consists of cient to cause the materials to react, upon each other with the production of an alkali manganate and a halogen, as set forth.

7. The process of producing alkali permanganates and hydroxide, which consists of heating a'mixture of an alkalicompound and a manganous chlorid, in the presence of an oxidizing agent, to a temperature sufficient to cause the materials to react' upon 7 each other with the production of a manganate, and treating the manganate witl Water, as set forth. V

8. The process of producing potassium permanganate, whichconsists of heating a 5 mizrture of a sodium compound and a manganous compound, in the presence of an oxidizing agent, to a temperature sufficient to cause the materials to react upon each other with the production of sodium manganate, treating the sodium manganate with water and thereby producing sodium permanganate, and converting the sodium permanganate into potassium permanganate by treating it with a potassium salt, as set forth.

In testimony whereof, I aflix my signature in presence of two witnesses.

FLORENTINE J. MAGHALLSKE. Witnesses:

G. N. HARRINGON, DONALD G. Peron. 

